Cake swift



P 9- H, J. M DERMQ i-T CAKE SWIFT Filed May 28, 1937 4 Sheets-Sheet 1 INVENTOR HENRY J. McDERMOTT BY HIS ATTORNEYS April 3 H. J. MCDERMOTT CAKE SWIFT Filed May 28, 1937 4 Sheets-Sheet 2 April ll, 1939.

-H. J. MCDERMOTT 2,154,343

CAKE SWIFT 4 Sheets-Sheet 5 Filed May 28, 1937 v INVENTOR HENRY J. McDERMOTT B\( HIS ATTORNEYS April 11, 1939. H. J. MCDERMOTT I 4 CAKE SWIFT Filed May 28, 1937 4 Sheets-Sheet 4 I I a f 34 INVENTOR HENRY J. McDERMOTT BY HIS ATTORNEYS Patent ed Apr-.11, 1939 PATENT OFFICE 2454.343 CAKE SWIIT Henry J. McDermott, Prospect Park, Pa., alsignor to American Viscose Corporation, Marcus Hook, Pa., a corporation of Delaware Application May :8, 1m, serials. 145,341 19 Claims. (01. sis-11o This invention relates to a swift for holding a yarn cake, and more particularly a swift on which a processed cake of rayon yarn can be mounted when reeling the yarn onto a spool of a winding machine. The ordinary cake of rayon yarn is hollow and is also somewhat tapered. It is difllcult to provide a collapsible swift which will hold the cake in an eflicient manner. The object of- 4 the invention is to provide a simple and efllcient construction for this purpose. It is characteristic of the invention that the periphery of the swift is formed by a plurality of resilient metal bands and that this periphery is expanded and contracted radially by movement of the heads toward or away from each other. I

In the drawings, Fig. l is a perspective view of one form of swift embodying my invention;

Fig. 2 is a vertical view in section taken on the line of the barrel of the swift of Fig. 1, one head being shown removed and in its assembled position in dotted lines;

Fig. 3 is a side view of the swift of Fig. 1 with a cake and cover thereon cut away-to show the construction of the swift more clearly;

- Fig. 4 is an end view of the swift of Figs. 1, 2 and 3,.showing how the wrapping of the cake is held on the outside of the head;

Fig. 5 is a disassembled view of the preferred 0 embodiment of my invention, showing one head removed preparatory to placing of a yarn cake on 1 the swift;

Fig. 6 is a view in vertical section along the line of the barrel, of the lower part of Fig. '5, 35 with the removable head in its operative position;

Fig. 7 is a side view of the preferred form ofswift with a cake and cover thereon, the cake I being cut away to show the construction of the swift more clearly; while Fig. 8 is an end view of the swift of Figs. 6 and showing how the wrapping of the cake is held on the outer side of the head. In the manufacture of rayon yarn, when th yarn is first spun into the form of a cake, ti 45 yarn is'either immediately reeled into the form of skeins or is enclosed in a cloth cover, processed and then wound onto a spool, bobbin or cone. If processed in cake form, it is important that the cake be mounted on a revoluble swift when the 50 yarn is ready to be transferred to a spool or bobbin. Revoluble swifts heretofore known have not a been entirely satisfactory to hold cakes that have been processed, and particularly when the yarn has not only been processed but dried while still in the form of a cake. The novel cake swift aboutto be described operates in a highly satisfactory manner for the transferring of yarn from cakes. I will first describe the construction illustrated in Figs. 1 to 4 of the drawings. The swift has a solid or tubular barrel or axle III which may be made of steel or stainless steel or any non-corrosive material. If desired. this barrel can be protected with acid-resisting paint. The barrel can have any desired pins II in its ends to permit mounting of the swift when the yarn is to be transferred to a spool. Theremay be a flanged spool 12 on the middle of this barrel, if desired, for-the purpose of suspending a weight to obtain greater tension on the yarn as it is wound off the swift. The flanges on the spool I! will serve to keep the weight i3 centered on the spool.

The swift has two flanges or heads l4, I! of which one is shown fixed on the barrel and the other removable. The flxed head It is screwed to a metal collar I. which in turn is screwed to the barrel It. The two heads may be made of compositions such as phenolic condensation products or any other suitable material. The removable head I! has a somewhat similar collar IT on which it is mounted, andthis collar I'I carries locking means adapted to hold the head without sliding on the barrel until thelock is manually released.

Any usual type of wedge lock maybe employed, and the one shown is merely illustrative of the principle. It consists primarily of a locking plate It and a compression spring it. There is an opening 20 through the locking plate adapted to receive the barrel II. The opening 20 is slightly larger in diameter than the barrel. The plate is mounted on a long screw 2i coming through from the inner face of'the head II through a flange, on the collar l1, and the plate is held spaced from the collar II by the compression spring IS. The spring serves to keep the plate away from the collar by pressing it flat against the nut 22 on the end of the screw II. The plate has a certain amount of play on the screw II. This pivot point of the locking plate is near one end of the plate barrel to end radiating therefrom at uniformlyspeced angles around the barrel. In the two side opposite trom the screw 38, through a. small hole in the lcchug plots.

The body or periphery ol the swlit is termed lo a novel manner. While theperlphery of e. llOl'lcollopsible swift ls ordlnez" lo the tom of a cylinder hovlng e solid surfece, the present eonstructlou hes on expauslble perlphery cooslstlug of e. plurallty of motel strips hovlug certain cherectexistics as to resiliency. The strlps ere bent or bowed to the form of loops running across the swllt, that is to say, to places containing the embodiments of the invention shown in the drawlogs, the elements coustltutlhg the periphery are flat bonds of resillezut metal hsvlu'g substantial width, belng bowed up luto the form of o. loop with the ends secured to the barrel by screws 26. These ends are made into return bends so that they lie flat on the surface of the hem-cl, but it will be oblvous that if desired the ends can be inserted radially into the barrel and held In that position. By bowing the bonds of Figs. 1 to 4 as just described, reslllent sides 25 foclng towards the two heads l i, l5 are provided. The outer portions 23 of the hands together form the :rlphesy of the swift and are preferably, though not necessarily, formed in e manner which keeps them straight and substantially rigid. To malnteiu this straight character, these portions 21 are curved in a; cross-section which is convex when viewed from the outside. If desired, the outer portions could be made of material which ls not resilient. Notches 28 can be out on the inner faces of the heads t l, 55 to assist in keeping the loops in their proper radial positions.

The efiect on these spring bonds of the removal and replacement of one of the heads ls shown very clearly in Fig. 2. The dotted line position of the bowed bands in this figure is the position which they assume when the removable head 45 is in its operative position and the bands are squeezed laterally to increase the periphery of the swift. When the removable head is taken off, the end portlons 25 of the bands which were in contact with the "emovable bead l5 expand out wardly to the solid line position, thus pulling the outer portions 21 radially inward. It will be noted that while the lateral expansion of the end portions 25 adjacent the removable head causes consequent slight lateral movement of the outer' portion 21 do not result in the same reduction in diameter of the periphery. This is due to the lateral pressure of the fixed head ll against the adjacent end portions 25 of the bands. The periphery of the swift therefore. assumes a. cone shape when the head I! is removed. This is particularly suitable for receiving the ordinary rayon yarn cake because the latter has a slight taper to it. After the cakevhas been slid over the periphery of the swift, the head I! can be pushed back onto the barrel and eupan sion of the periphery caused by pressure of the head I! and the end portions 25 adjacent it. The head I can be pushed inwardly until the desired amouutof 11 pm when it is desired to release the head from the bowel,

Figs. 3 and l.

the bands.

,creeyse lo diameter and reduction in taper of the periphery have been obtained. To avoid the possibility of expanding the metal bands beyond thels-l'esldeht limits, a. set screwfi 'l is located at the proper point on the swift barrel (Figs. .2 end 3) 'Whlle in Fig. 2 the operative position of the spitting bends does not indicate any taper, it

wlll he obvlous that the parts can be adjusted to keep e. slight taper, if that is desired.

Assuming that a. processed yam cake while stlllsurcounded by e. cloth cover 32 to protect it, has been placed on the swift and the removable heed l5 has been pushed into its operative positlon, the trigger or looking plate will hold the heed ll: in position. The cover or cloth is then unwolmd from the face of the celze and each side is turned back over the adjacent head and passed underneath small metal clips 25*]; as shown in Thesecllps are loops of resilient metal held between the heads t ll and and the flanges on thelr collars as and ll, us can be seen in Figs. 1 to t. The parts are new in the position shown in Fig. 3, with the coke resting against the outer portion 2? forming the periphery. It will be observed that because of the pressure of the heads these bands have expanded against the inner side of the cake so as to permit removal of all the yarn wlthout collapse of the coke toward the end of the operation. Also the lateral pressure of the heads 64 and i5 has so compressed and hardened the cake as to cause it to resist the natural tendency of the yam to channel inwards due to the pull of the spool.

As shown in Fig. 3, a. weight 53 suspended on the spool 92 on the barrel by means of a yoke can be employed to provide the desired tension on the yarn as it is being wound oil the cake. The

' weight is inside the cake in this particular drawing.

The preferred embodiment of the invention is shown in -figs. 5 to 8. It will be noted in Fig. 3 that the top and bottom of the cake are not wholly supported by the outside portions 2? of In the preferred form the bowed end portions 32 do not lie between the heads when the'removable head is in its operative posh tion. In this way the entire height of the cake ls backed up by a. straight edge from top to bottom of the coke, i. e., the'stralght outer sides 33 0f the bands. The heads 34 and 35 have radial slots 38 out through their walls and the bowed ends 32 of the bands are adapted to extend through these slots 86 to or past the outside of the head. In order to expand the periphery of the swift there is a cumming shoulder 31 formed in the heads 34 and 35 at the inner end of each slot 36. In this preferred embodiment the dimensions of the parts are slightly dlflerent from the form shownln Figs. 1 to 4, the screws 38 which fasten the ends of the bands to the barrel 39 tive positions of the heads. This can be seen in Flg. 5. With this arrangement the bend in the bowed ends 32 is thrown more toward the periphery with a. resultant greater taper in the periphery when the removable head 35 is of! the barrel 3!. As shown in Fig. 6, this increased taperhas no marked effect on the dimensions or slope of the periphery when the removable head is on the barrel, except to eliminate the sloping portion facing the upper and lower edges of the cake, as shown in Fig. 3. Thepreferred construction also dlfl'ers from the embodiment of Figs. 1 to 4 in several other details. Thus the collars carrylog the heads have been eliminated and'the nec- 2,154,848 7 'essary collars 40,. 4| have been formed as a part of the heads themselves. A key and a slot 42, 43 have been provided to. keep the removable head being placed in the middle of the barrel (where it is inside the cake), ls located on one end of the barrel outside the fixed head 34, where it is available for. adjustment of .the weight at all times. The number of spring clips 29 has been increased from four to five, which equalsthe number of spring bands employed. It will be observed that with this construction the cake is supported on the inside from top to bottom by long straight .edges, the bands being of appreciable width to cover a large part of the inner surface of th cake, circumferentially speaking, and experience shows that there is no distortion of the cake. As in the previous embodiment, the cbmbined radial pressure of the spring bands adjusting themselves to the taper of the cake, together with the lateral pressure between the heads, maintains the cake in perfect condition for transferring the yarn to a winding machine, whether the cakev is dry or wet.

. Many modifications not departing from the scope of my invention will occur to those skilled in the art.

What I claim is;

1. A yarn swift comprising a barrel and a plurality of loops lying across the swift attached only to the barrel and radiating therefrom, the outer sides of the loops forming the periphery of the swift, the ends of the loops being resilient and one or both of said heads being removable.

3. A swift for a yarn cake, comprising a barrel and a plurality of resilient bands attached only to the barrel and each bent into the form of a.

loop lying across the swift and radiating from the barrel, incombination with two heads on said barrel adapted to increase the periphery of the-swift by pressing against the sides of the loops, one or both of said heads being removable.

4. A swift for a yarn cake, comprising a barrel, a plurality of flat resilient bands attached only to the barrel and each bent into theform'of a loop lying across the swift and radiating from the barrel, in-combination with .two heads on said barrel adapted to increase the periphery of the swift by pressing against the sides of the loops, one of said heads being removable. 5. A swift for a yarn cake, comprising a barrel and a plurality of resilient bands attached only to the barrel and each bent into the form of a loop lying across the swift and radiating from the barrel, the outer sides of the loops being convex in cross-section to impart rigidity, in combination with two heads on said barrel adapted to increase the periphery of the swift by pressing against the sides of the loops.

attached only to. the barrel and radiating therefrom, the outer sides of the loops forming the periphery 'of the swift and being substantially rigid, the ends of the loops being resilient and bowed, in combination with heads on said barrel 3 adapted to press against the ends of the loops and thereby increase the periphery of the swift.

7. A swift for a yarn cake, comprising a barrel and a plurality of loops lying across the swift attached only to the barrel and radiating therefrom, the outer sides of the loops forming the periphery of the swift, the ends of the loops being resilient and bowed, in combination with heads swift, one of said heads being removable to give a tapered periphery to permit placing a cake on the swift.

8. A swift for a yarn cake, comprising a barrel and a plurality of loops lying across the swift attached to-the barrel and radiating therefrom, the outer sides of the loops forming the periphery of the swift, the ends of the loops being resilient and bowed, in combination with heads on said barrel adapted to press against the ends of the loops and thereby increase the periphery of the swift, one of said heads being removable to give a tapered periphery smaller than when the head is in position, thereby permitting placing a cake on the swift.

9. A swift for a yarn cake, comprising a barrel and a plurality of loops lying across the swift attached to the barrel and radiating therefrom. the outer sides of the loops forming the periphery of the swift, the ends of the loops being resilient and bowed, in combination with heads on said barrel adapted to press against the ends of the loops and thereby increase the periphery of the swift, one of said heads being removable. means on said removable head capable of looking it in any desired position on said barrel.

10. A swift for a yarn cake. comprising a barrel and a plurality of loops lying across the swift attached only to the barrel and radiating therefrom, the outer sides of the loops forming the periphery of the swift and being substantially rigid, the ends of the loops being resilient and bowed, in combination with heads on said barrel whose inner faces are adapted to press against the ends of the loops and thereby increase the periphery of the swift.

11. A swift for a yarn cake, comprising a barrel and a plurality of loops lying across the swift attachedv to the barrel and radiating therefrom, the outer sides of the loops forming the periphery of the swift, the ends of the loops being resilient and bowed, in combination with heads on said barrel having slots therein in which the bowed ends of the loops may lie, said heads being adapted to press against the ends of the loops and thereby increase'the periphery of the swift, one or both of said heads being removable to permit placing of a yarn cake on the swift.

12. A swift fora yarn cake, comprising a barrel and a plurality of loops lying across the swift attached only to the barrel and radiating therefrom, the outer sides of the loops forming the periphery of the swift and being substantially rigid and straight, the ends of the loops being resilient and bowed, in combination with heads on said barrel adapted to press against the ends of the loops and thereby increase the periphery of the swift, one of said heads being removable to permit placing of a yarn cake on the swift. both of said heads having openings therein in which the bowed ends of the loops are adapted to lie when the heads exert pressure on them, thereby leaving only substantially rigid and straight surfaces to form the periphery of the swift.

13. A yarn swift comprising an axial support and a plurality of thread engaging members forming the periphery of the swift and lying across same radiating from the axial support, said members being carried by their ends which are attached only to the axial support at longitudinally spaced points so located as to provide bowed portions extending outwardly beyond the respective spaced points, in combination with means adapted to press axially, against the bowed sides of the thread engaging members and thereby increase the periphery of the swift.

14. A yarn swift comprising an axial support and a plurality of loops forming the periphery of the swift and lying across same radiating from the axial support, the ends of the loops being resilient and bowed and said loops being carried by their ends which are attached only to the axial support, in combination with heads adapted to retain the yarn on the swift and to press the bowed sides'of the loops together, thereby increasing the periphery of the swift. p

15; A yarn swift comprising an axial support and a plurality of loops forming the periphery of the swift and lying across some radiating from the axial support, the ends of the loops being resilient and bowed and said loops being carried by their ends which are attached only to the axial support, in combination with members adapted to press against the sides of the loops, thereby increasing the periphery of the swift, and means for retaining one of said members in any desired position on the axial-support.

16. A yarn swift comprising an axial support and a plurality of loops fo ruins the periphery of the swift and lying across same radiating from the axial support, the ends oi the loops being resilient and bowed and said loops being carried by their ends which are attached only to the axial support, in combination with members encased adapted to press against the sides of the loops. thereby incre the periphery of the swift,

and means carried by the said members to secure a yarn covering thereto.

17. A yarn swift comprising support means ar-- ranged axially of the swift and a plurality or resilient bands lying in planes containing the axis and'forming the periphery of the swift, said bands being bowed back'upon themselves and mounted on the support means, whereby the bands can adjust themselves to give a periphery of non-uniform diameter according to the pressure of the yarn, in combination with beads w adapted to increase the periphery of its end of the swift by pressing against the sides or the bows, one or both of said heads removable.

18. A swift for a yarn cake, comprising support means arranged axially of the swiit and a plurality of resilient bands lying in planes containing the axis and forming the periphery of the swift, said bands being bowed back upon themselves and mounted solely on the support means, whereby the bands can adjust themselves axially to any slope on the interior of the cake, in combination with heads adapted to retain the ill cake on the swift and to expand the periphery diameter in an axial direction, in combination with h adapted to retain the. cake on the swift and to end the periphery of the swift by inwardly against the sides of the bows, at least one of said heads removable.

Y J. women. 

